http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
효율적인 골 재형성 전산모사를 위한 걸음걸이 하중의 대표 정적 하중 결정 프레임워크 개발
천봉주(Bong Ju Chun),장인권(In Gwun Jang) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.11
Bone experiences both static and dynamic loads and changes itself to efficiently support the loads by bone remodeling process. Based on a two-scale approach, the representative static loads (RSLs) that have equivalent effects to the gait cycle were determined for the efficient bone remodeling simulation. First, finite element analysis was conducted to evaluate the strain energy distribution at the proximal femur using the gait cycle. Then, a natural coordinate for the short time-scale was created to eliminate the variation of the location of extreme points in the gait cycle (i.e., two peaks and one valley) between patients. Optimization was conducted in the natural coordinate to determine the RSLs which give the proximal femur the equivalent strain energy distribution to the gait cycle. The topology optimization using determined RSLs give 0.90% apparent stiffness error and 95.69% simulation time reduction compared to the topology optimization using gait cycle.